.page-products {
  position: relative;
}

/* ---------- 面包屑与首屏 ---------- */
.page-products .breadcrumb {
  padding-block: 1.25rem .5rem;
}

.page-products .dl-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(1.5rem, 4vw, 3rem) clamp(2.5rem, 6vw, 4.5rem);
}

.page-products .dl-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-products .dl-hero__grid {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3.5rem);
  align-items: center;
}

.page-products .dl-hero__copy .lede {
  margin-top: 1rem;
  max-width: 46ch;
}

.page-products .dl-hero__tags {
  margin-top: 1.5rem;
  gap: .5rem;
}

.page-products .dl-hero__actions {
  margin-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1rem;
}

.page-products .dl-hero__media {
  aspect-ratio: 14 / 9;
  width: 100%;
}

.page-products .dl-hero__media img,
.page-products .dl-ios__media img,
.page-products .dl-install__figure img,
.page-products .dl-entry__media img,
.page-products .dl-upkeep__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 首屏数据条 ---------- */
.page-products .dl-quick {
  margin: clamp(2rem, 5vw, 3rem) 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-products .dl-quick > div {
  background: var(--ink-deep);
  padding: 1.05rem 1.15rem;
}

.page-products .dl-quick dt {
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-products .dl-quick dd {
  margin: .4rem 0 0;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.2;
  color: var(--paper);
}

/* ---------- 版本总览：左轨道 + 右宽卡 ---------- */
.page-products .dl-versions .section-head {
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.page-products .dl-console {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-products .dl-rail {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

.page-products .dl-rail__title {
  margin: 0 0 .75rem;
  font-size: .75rem;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-products .dl-rail__tags {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.page-products .dl-rail__note {
  margin: 1rem 0 0;
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--lime);
  max-width: 24ch;
}

.page-products .dl-version-list {
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.5rem);
}

.page-products .dl-version {
  border-left: 2px solid var(--line);
  transition: border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-products .dl-version:hover,
.page-products .dl-version:focus-within {
  border-left-color: var(--cinnabar);
  transform: translateY(-3px);
}

.page-products .dl-version .prose {
  margin-block: 1rem;
  font-size: .9375rem;
}

.page-products .dl-version .tag-row {
  margin-bottom: 1.25rem;
}

.page-products .dl-spec {
  display: grid;
  gap: 0;
  margin: 1rem 0 0;
}

.page-products .dl-spec .index-row {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr);
  gap: .75rem;
  padding-block: .55rem;
  border-bottom: 1px dashed var(--line-soft);
  font-size: .875rem;
  line-height: 1.6;
}

.page-products .dl-spec .index-row:first-child {
  border-top: 1px dashed var(--line-soft);
}

.page-products .dl-spec .index-key {
  color: var(--lime);
}

.page-products .dl-spec .index-val {
  color: var(--paper);
}

/* ---------- 苹果升级版专区 ---------- */
.page-products .section--paper {
  color: var(--stone);
}

.page-products .section--paper .eyebrow {
  color: var(--moss);
}

.page-products .section--paper .prose,
.page-products .section--paper .note {
  color: rgba(26, 26, 26, .78);
}

.page-products .dl-ios__grid {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3.5rem);
  align-items: start;
}

.page-products .dl-ios__media {
  aspect-ratio: 5 / 6;
  width: 100%;
}

.page-products .dl-ios__body h2 {
  margin-bottom: 1rem;
}

.page-products .dl-path {
  margin-top: clamp(1.5rem, 3.5vw, 2.25rem);
  display: grid;
  gap: 1rem;
  align-items: center;
}

.page-products .dl-path__arrow {
  display: none;
  width: 88px;
  height: 22px;
  color: var(--gold);
  justify-self: center;
}

.page-products .dl-path__col {
  padding: 1rem 1.15rem;
  border-radius: 0;
}

.page-products .dl-path__col--old {
  border: 1px dashed rgba(11, 31, 26, .28);
  background: rgba(255, 255, 255, .55);
}

.page-products .dl-path__col--new {
  border: 1px solid var(--gold);
  background: var(--ink-deep);
  color: var(--paper);
}

.page-products .dl-path__label {
  margin: 0;
  font-size: .75rem;
  letter-spacing: .14em;
}

.page-products .dl-path__col--old .dl-path__label {
  color: rgba(11, 31, 26, .6);
}

.page-products .dl-path__col--new .dl-path__label {
  color: var(--gold-light);
}

.page-products .dl-path__steps {
  list-style: none;
  margin: .85rem 0 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-products .dl-path__steps li {
  position: relative;
  padding-left: 1.15rem;
  font-size: .875rem;
  line-height: 1.7;
}

.page-products .dl-path__steps li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  opacity: .5;
}

.page-products .dl-path__col--new .dl-path__steps li::before {
  background: var(--gold);
  opacity: 1;
}

/* ---------- 安装流程 ---------- */
.page-products .dl-install .section-head {
  margin-bottom: clamp(1.5rem, 3.5vw, 2.25rem);
}

.page-products .dl-install__figure {
  aspect-ratio: 3 / 2;
  width: 100%;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.page-products .dl-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

.page-products .dl-step {
  padding-block: .35rem;
  border-top: 1px solid var(--line-soft);
  padding-top: 1.25rem;
  transition: border-color var(--t-fast) var(--ease);
}

.page-products .dl-step:hover,
.page-products .dl-step:focus-within {
  border-top-color: var(--gold);
}

.page-products .dl-step__num {
  display: block;
  font-family: var(--font-serif);
  font-size: 2rem;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--gold);
  transition: color var(--t-fast) var(--ease);
}

.page-products .dl-step:hover .dl-step__num {
  color: var(--cinnabar);
}

.page-products .dl-step h3 {
  margin: .75rem 0 .5rem;
  font-size: 1.15rem;
}

.page-products .dl-step p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
}

.page-products .dl-trouble {
  margin-top: clamp(2rem, 4.5vw, 3rem);
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--line);
  background: var(--ink);
}

.page-products .dl-trouble h3 {
  margin: 0 0 .6rem;
  font-size: 1.05rem;
  color: var(--gold-light);
}

.page-products .dl-trouble p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
}

.page-products .dl-trouble__links {
  margin-top: 1.15rem;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

/* ---------- 安装之后：合并索引 ---------- */
.page-products .dl-entry {
  position: relative;
  overflow: hidden;
}

.page-products .dl-entry .wrap {
  position: relative;
  z-index: 1;
}

.page-products .dl-entry__grid {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3.5rem);
  align-items: center;
}

.page-products .dl-entry__list {
  list-style: none;
  margin: clamp(1.5rem, 3.5vw, 2rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-products .dl-entry__list li {
  background: var(--ink-deep);
}

.page-products .dl-entry__link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .35rem 1rem;
  padding: .9rem 1.05rem;
  text-decoration: none;
  color: inherit;
  transition: background var(--t-fast) var(--ease), padding-left var(--t-fast) var(--ease);
}

.page-products .dl-entry__link:hover,
.page-products .dl-entry__link:focus-visible {
  background: var(--celadon);
  padding-left: 1.4rem;
}

.page-products .dl-entry__name {
  flex: 0 0 auto;
  min-width: 5.5rem;
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  color: var(--gold-light);
}

.page-products .dl-entry__desc {
  font-size: .875rem;
  line-height: 1.6;
  color: rgba(245, 242, 233, .72);
}

.page-products .dl-entry__media {
  aspect-ratio: 10 / 7;
  width: 100%;
}

/* ---------- 维护与支持 ---------- */
.page-products .dl-upkeep__grid {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3.5rem);
  align-items: center;
}

.page-products .dl-upkeep__body h2 {
  margin-bottom: 1rem;
}

.page-products .dl-upkeep__facts {
  margin-top: clamp(1.5rem, 3.5vw, 2rem);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(11, 31, 26, .14);
  border: 1px solid rgba(11, 31, 26, .14);
}

.page-products .dl-fact {
  background: var(--paper);
  padding: 1rem 1.1rem;
}

.page-products .dl-fact__num {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  line-height: 1.2;
  color: var(--moss);
}

.page-products .dl-fact__label {
  display: block;
  margin-top: .35rem;
  font-size: .8125rem;
  line-height: 1.6;
  color: rgba(11, 31, 26, .7);
}

.page-products .dl-upkeep__media {
  aspect-ratio: 4 / 3;
  width: 100%;
}

.page-products .dl-support {
  margin-top: clamp(2rem, 5vw, 3.25rem);
  padding-top: 1.75rem;
  border-top: 1px solid rgba(11, 31, 26, .18);
  display: grid;
  gap: 1.25rem;
}

.page-products .dl-support__text h3 {
  margin: 0 0 .6rem;
  font-size: 1.15rem;
  color: var(--ink);
}

.page-products .dl-support__text p {
  margin: 0;
  max-width: 52ch;
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(26, 26, 26, .78);
}

.page-products .dl-support .btn {
  justify-self: start;
}

/* ---------- 下载类按钮悬停转为朱砂红 ---------- */
.page-products .btn--gold:hover,
.page-products .btn--gold:focus-visible {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--paper);
}

.page-products .dl-version .btn--line:hover,
.page-products .dl-version .btn--line:focus-visible {
  border-color: var(--gold);
  color: var(--gold-light);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .dl-quick {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .dl-steps {
    gap: 2rem;
  }

  .page-products .dl-support {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-products .dl-support .btn {
    justify-self: end;
  }
}

@media (min-width: 760px) {
  .page-products .dl-path {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    gap: 1.25rem;
  }

  .page-products .dl-path__arrow {
    display: block;
  }

  .page-products .dl-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.75rem;
  }
}

@media (min-width: 900px) {
  .page-products .dl-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-products .dl-ios__grid,
  .page-products .dl-entry__grid,
  .page-products .dl-upkeep__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .page-products .dl-ios__media,
  .page-products .dl-upkeep__media {
    order: -1;
  }
}

@media (min-width: 960px) {
  .page-products .dl-console {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-products .dl-rail {
    position: sticky;
    top: 2rem;
    border-top: 1px solid var(--line);
  }

  .page-products .dl-rail__tags {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
  }

  .page-products .dl-rail__tags .tag {
    text-align: left;
  }

  .page-products .dl-version {
    padding-inline: clamp(1.25rem, 2.5vw, 2rem);
  }
}

@media (max-width: 959px) {
  .page-products .dl-rail__tags {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: .4rem;
    scrollbar-width: thin;
  }

  .page-products .dl-rail__tags .tag {
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .page-products .dl-rail__note {
    max-width: none;
  }
}

@media (max-width: 420px) {
  .page-products .dl-quick {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .dl-spec .index-row {
    grid-template-columns: minmax(0, 1fr);
    gap: .15rem;
  }

  .page-products .dl-upkeep__facts {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .dl-version,
  .page-products .dl-entry__link,
  .page-products .dl-step,
  .page-products .dl-step__num {
    transition: none;
  }

  .page-products .dl-version:hover,
  .page-products .dl-version:focus-within {
    transform: none;
  }

  .page-products .dl-entry__link:hover,
  .page-products .dl-entry__link:focus-visible {
    padding-left: 1.05rem;
  }
}